Code of Federal Regulations Title 41. Public Contracts and Property Management § 41.109–27.5104–2 Physical protection and storage

Precious metals shall be afforded exceptional physical protection from time of receipt until disposition. Precious metals not in use shall be stored in a noncombustible combination locked repository with access limited to the designated custodian and an alternate. When there is a change in custodian or alternate having access to the repository, the combination shall be changed immediately.